The event draws supporters from across the state to celebrate equality.

“It’s given permission for those other fly-over states to embrace same-gender marriage,” said Donna Red Wing, One Iowa’s executive director. “If Iowa can do it, you know, why can’t Illinois? Why can’t Michigan?”

About 350 people attended the event, including former Iowa Supreme Court Justice Michael Streit.

Streit was ousted with two of his colleagues in 2010 following his role in the decision.

Hillary Clinton's office said "nothing nefarious was at play" when the former secretary of state used her personal email address, rather than one provided by the State Department, during her four years as America's top diplomat.